Achievements
| Achievement | Description |
|---|---|
| 343 Guilty Spark (25) | Complete the level "343 Guilty Spark" on any difficulty. |
| All According to Plan... (10) | Kill all the enemies in the first encounter of "Truth and Reconciliation" without being detected. |
| Assault on the Control Room (25) | Complete the level "Assault on the Control Room" on any difficulty. |
| Beachhead (10) | Storm the beach of "The Silent Cartographer" with no marine casualties on Heroic or Legendary. |
| Believe in a Hero (20) | Complete every level of the game on Heroic difficulty. |
| Birth of a Spartan (10) | Complete every level of the game on Normal difficulty. |
| Breaking Quarantine (25) | Escape the Forerunner facility on the level "343 Guilty Spark" in 21 minutes or less. |
| Bro Hammer (50) | Complete any level on Legendary difficulty cooperatively. |
| Brovershield (20) | Complete any level on Heroic difficulty cooperatively. |
| Close Quarters Combat (25) | Complete the level "Truth and Reconciliation" with at least four rounds left in your Sniper Rifle. |
| Dear Diary... (50) | Read all of the terminals hidden throughout the campaign. |
| Grenadier (25) | Escape the map room in "The Silent Cartographer" without firing a shot on Heroic or Legendary. |
| Halo (25) | Complete the level "Halo" on any difficulty. |
| He's Unstoppable! (20) | Complete any level on Heroic difficulty or higher without taking health damage. |
| Headhunter (50) | Locate all the skulls hidden throughout the campaign. |
| Heavy Reading (25) | Read half the terminals hidden throughout the campaign. |
| How Pedestrian (25) | Complete the level "Halo" on any difficulty without entering a vehicle. |
| I'll Be Taking That! (25) | Pilot a Banshee on the level "Assault on the Control Room." |
| Keyes (25) | Complete the level "Keyes" on any difficulty. |
| Leave It Where It Lay (25) | Complete the level "Two Betrayals" on Legendary difficulty without picking up a new weapon. |
| Living Legend (50) | Complete every level of the game on Legendary difficulty. |
| Look Out for the Little Guys (10) | Complete the level "Two Betrayals" on Heroic difficulty or higher without killing any Grunts. |
| Looks like the Oddball (10) | Find your first campaign skull. |
| Never Tell Me the Odds (25) | Escape "The Maw" on Legendary with at least a minute left on the count down. |
| No-Fly Zone (10) | Destroy three of the four Banshees on "Halo" on any difficulty during a single play-through. |
| Overshields are for Sissies (10) | Complete the level "Pillar of Autumn" on Legendary without picking up an Overshield. |
| Pillar of Autumn (25) | Complete the level "Pillar of Autumn" on any difficulty. |
| Popcorn.gif (25) | Kill 100 Flood Infection Forms on the level "Keyes" on Heroic difficulty or above. |
| Skulls Taken! (25) | Locate half of the skulls hidden throughout the campaign. |
| Speed Reader (25) | Complete the level "The Library" on Legendary difficulty in 30 minutes or less. |
| Standard Operating Brocedure (10) | Complete any level on Normal difficulty cooperatively. |
| That Just Happened (10) | Complete the level "The Library" on Heroic difficulty or higher without dying. |
| The Library (25) | Complete the level "The Library" on any difficulty. |
| The Maw (25) | Complete the level "The Maw" on any difficulty. |
| The Silent Cartographer (25) | Complete the level "The Silent Cartographer" on any difficulty. |
| This One's for Jenkins! (10) | Kill 50 Flood Combat Forms on the level "343 Guilty Spark" on Heroic difficulty or higher. |
| This Side Up (10) | Complete the Warthog ride on the level "The Maw" without being forcibly ejected from your vehicle. |
| Truth and Reconciliation (25) | Complete the level "Truth and Reconciliation" on any difficulty. |
| Tsantsa (50) | Complete any level with at least three skulls active on Heroic difficulty or higher. |
| Two Betrayals (25) | Complete the level "Two Betrayals" on any difficulty. |
| Tying Up Loose Ends (10) | Kill every Elite on the level "Keyes" on Heroic difficulty or above. |
| Walk it Off (25) | Complete the level "Pillar of Autumn" on Legendary without picking up a health kit. |
| What have we here? (10) | Read a terminal. |
| Wraith Hunter (10) | Destroy four Wraith tanks in "Assault on the Control Room" with the Scorpion tank, in a single play. |
Bandanna Skull
This skull which gives you unlimited ammo can be found on the fourth mission: The Silent Cartographer, after the covenant lock the doors you have to go to the security override building. In the tunnel before activating the console, turn right, go outside then turn right again and you should see the exterior of the tunnel you came through, the skull is on top of this tunnel at the far end. To get to it, you need to use the force of a grenade to jump onto the structure and grab the skull.
| Item | Location |
|---|---|
| Bandanna Skull | The Silent Cartographer, before activating the security override console |
Famine Skull
The Famine Skull is located on the level Silent Cartographer. At the beginning of the level just turn around and walk around the island until you reach the large rock where the Pelican crash site is later located with rocket launcher and ammo. Walk up the rock to the top and claim the skull.
| Item | Location |
|---|---|
| Famine Skull | On Silent Cartographer on the large rock where the Pelican crash site is located. |
Foreigner Skull
This skull can be found on the level Truth and Reconciliation in the large hanger before the brig on the lower level. The skull is inside the door farthest from where you initially enter the room and to the right. The door is locked and only lets enemies enter the fight, so you need to run for the door when it is opening before you lose your chance.
| Item | Location |
|---|---|
| Foreigner Skull | Truth and Reconciliation, large hanger side door prior to arriving at the Brig. |
Iron Skull
This skull can be found in "The Pillar of Autumn" at the beginning of the level. Once you gain control, turn around and look behind two large crates against the wall.
| Item | Location |
|---|---|
| Iron Skull | The Pillar of Autumn |
Malfunction Skull
The Malfunction Skull is located on the level Assault on the Control Room in an under ground section past the frozen lake section with a wraith and two banshees. When you first arrive in this large subterranean area there is a turret on a broken bridge to the right. Walk toward the bridge and look down in the chasm to the left of the bridge; there you'll see a conduit with the skull waiting for you. The updated graphics need to be enable to find and obtain skulls.
| Item | Location |
|---|---|
| Malfunction Skull | On Assault on the Control Room left of the broken bridge in the underground. |
Mythic Skull
At the start of the level Halo head toward the large waterfall. The skull will be behind the large rock that has a plant growth above it.
| Item | Location |
|---|---|
| Mythic Skull | Start of the level Halo behind the large rock by the waterfall |
Recession Skull
The Recession Skull is obtainable on the level 343 Guilty Spark. At the start of the level you'll get off Pelican E419. Turn left to face the left side of a very large green glowing tree. Walk straight ahead while avoiding any obstacles. You should come upon a hill with two trees and a bush in the middle where the skull resides.
| Item | Location |
|---|---|
| Recession Skull | On 343 Guilty Spark turn left at the start and walk in the direction of a large green glowing tree and keep going. It's on a hill behind a bush. |
Guilty spark firefight
On firefight map installation 4 go to station 2 and look in the glass guilty spark will be there it say:press X to take allys weapon!
